Zonal and meridional
Middle-atmospheric zonal and meridional wind profiles from polar, tropical and midlatitudes with the ground-based microwave Doppler wind radiometer WIRA
... the zonal wind direction reversed to westward only in the mesosphere and remained eastward in the ...the zonal wind velocities measured by WIRA were slightly ...ECMWF zonal wind velocities in the ...
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A case study of mesospheric planetary waves observed over a three radar network using empirical mode decomposition
... satellite and the ground-based radar systems (Riggin et al., 2006; Jiang et al., 2008). They mentioned that the 6.5-day wave in the MLT region during April–May 2003 should be regarded as an atmospheric normal mode, which ...
12
Rossby wave propagation tracks in southern hemisphere mean basic flows associated to generalized frosts over southern South America
... Hoskins and Karoly (1981) used the idea of geometric optics ray tracing and wave propagation in a slow varying medium to study the propagation of stationary planetary waves in a zonally symmetric barotropic atmosphere. ...
11
Estimation of oceanic subsurface mixing under a severe cyclonic storm using a coupled atmosphere–ocean–wave model
... the zonal and meridional components of the baro- clinic current profile and shown in ...in zonal and meridional baroclinic ...the zonal baroclinic current, and within 0–38 m, with a ...
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An experimental study of the Atlantic variability on interdecadal timescales
... the meridional tempera- ture difference; yet, we intended to calculate the character- istic timescale of a zonal ...the zonal and meridional compo- nents of the flow velocity are generally on ...
9
Estimates of Mode-S EHS aircraft-derived wind observation errors using triple collocation
... The representative error has some relation to the azimuth angle (zonal component of the wind is equal to a radial wind observed with an azimuth angle of 90 ◦ ); see Fig. 4. Each point in this figure is based on ...
10
The 8-h tide in the mesosphere and lower thermosphere over Collm (51.3 N; 13.0 E), 2004–2011
... constructed from these data. The amplitude shows a seasonal behaviour with maximum values during the equinoxes, and it is generally increasing with altitude. The largest ampli- tudes are measured in autumn, partly ...
6
Effect of latitudinally displaced gravity wave forcing in the lower stratosphere on the polar vortex stability
... the zonal distribution of the forcing (this ...the zonal wind is weak (after ...the zonal and meridional GW flux, which changes according to the propagation conditions, we analyzed the ...
17
Effects of the synoptic scale variability on the thermohaline circulation
... Abstract. In this paper the effect of the synoptic scale vari- ability is analyzed using a simple atmosphere-ocean coupled model. This high frequency variability has been taken into account in the model adding white ...
5
Climate warming and decreasing total column ozone over the Tibetan Plateau during winter and spring
... in zonal and meridional SST ...local meridional SST gradient is one of the dominant fac- tors in controlling boreal spring Atlantic Intertropical Con- vergence Zone ...the meridional SST ...
13
Intercomparison of middle-atmospheric wind in observations and models
... The 11-month time series comparison of quasi-continuous data reveals that the transition from the highest WIRA lev- els to the lowermost radar recordings at around 0.02 hPa is smooth. This statement also applies to the ...
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MERIDIONAL AND ZONAL WAVENUMBER DEPENDENCE IN POTENTIAL VORTICITY FLUX IN ROSSBY WAVES
... Abstract: Eddy-driven jets are of importance in the ocean and atmosphere, and to a first approximation are governed by Rossby wave dynamics. This study addresses the time-dependent flux of fluid and potential vorticity ...
32
Effects of meridional sea surface temperature changes on stratospheric temperature and circulation
... in zonal and meridional SST ...local meridional SST gradient is one of the dominant fac- tors in controlling boreal spring Atlantic Intertropical Con- vergence Zone ...the meridional SST ...
14
Improved near real time surface wind resolution over the Mediterranean Sea
... Abstract. Several scientific programs, including the Mediterranean Forecasting System Toward Environmental Predictions (MFSTEP project), request high space and time resolutions of surface wind speed and direction. The ...
13
On the meridional ageostrophic transport in the tropical Atlantic
... Chereskin and Roemmich (1991) also observed energetic, circularly polarized, relative currents of large horizontal co- herence below the base of the mixed layer at 11 ◦ N in the At- lantic. They described the signal as ...
19
MST radar signal processing using iterative adaptive approach
... Power spectrum is the considerable aspect in the atmospheric radar data processing to estimate wind parameters. Due to the poor resolution and high sidelobe level problems of the existing algorithms, there is a requisite ...
10
The TropD software package (v1): standardized methods for calculating tropical-width diagnostics
... where V(lat,lev) is the zonal-mean meridional wind. As in all of the metrics described below, Ys and Yn are the tropical edge latitudes in the Southern Hemisphere and Northern Hemisphere (SH and NH), ...
19
On large scale convection in the atmosphere over the tropical Western Pacific and Eastern Indian Ocean
... wind; c Wind speed; and d direction difference 48 Figure 3.7 Time series of 5-day averaged wind components of mooring off Cape Naturaliste and ATRA analysis: a zonal wind; b meridional w[r] ...
302
The location of diapycnal mixing and the meridional overturning circulation
... strong zonal flows into the eastern boundary that subsequently downwell, leading to an east-west temperature difference that provides the vertical shear necessary for the MOC (Zhang 1992; Colin de Verdière 1993; ...
43
Computation of a new mean dynamic topography for the Mediterranean Sea from model outputs, altimeter measurements and oceanographic in situ data
... Height (top right), zonal velocity (bottom left) and meridional velocity (bottom right) differences between the Mediterranean mean dynamic topography obtained from the inversion of the m[r] ...
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